5-Methyl heptan-3-one
3-Heptanone, 5-methyl
Ethyl amyl ketone
Ethyl sec-amyl ketone
C8H16O
Molecular mass: 128.24
ICSC # 1391
CAS # 541-85-5
RTECS # MJ7350000
UN # 2271
EC # 606-020-00-1
|
|
Types of Hazard/ Exposure
|
Acute Hazards/ Symptoms
|
Prevention
|
First Aid/
Fire Fighting
|
|
FIRE
|
Flammable.
|
NO open flames, NO sparks, and NO smoking.
|
Water spray,
powder
,
foam
carbon dioxide
.
|
|
Explosion
|
Above 43°C explosive vapour/air mixtures may be formed.
|
Above 43°C use a closed system, ventilation, and explosion-proof electrical equipment.
|
In case of fire: keep cylinder cool by spraying with water.
|
|
|
|
Exposure
|
|
|
|
|
•Inhalation
|
Cough.
Dizziness.
Headache.
Nausea.
Sore throat.
|
Ventilation, local exhaust, and breathing protection.
|
Fresh air, rest.
Refer for medical attention.
|
|
•Skin
|
Dry skin.
Redness.
|
Protective gloves.
|
Remove contaminated clothes.
Rinse skin with plenty of water or shower.
|
|
•Eyes
|
Redness.
Pain.
|
Safety spectacles.
|
First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
|
|
•Ingestion
|
Vomiting.
(Further see Inhalation).
|
Do not eat, drink, or smoke during work.
|
Rinse mouth.
Give one or two glasses of water to drink.
Refer for medical attention.
|
|
Spillage Disposal
|
Storage
|
Packaging & Labelling
|
Ventilation.
Remove all ignition sources.
Collect leaking and spilled liquid in sealable containers as far as possible.
Absorb remaining liquid in sand or inert absorbent and remove to safe place.
Do NOT wash away into sewer.
Personal protection:
filter respirator for organic gases and vapours.
|
Fireproof.
Separated from
strong oxidants,
strong bases,
strong reducing agents
.
Well closed.
|
Xi symbol
R: 10-36/37
S: 2-23
UN Hazard Class: 3
UN Packing Group: III
|
|
|
|
Important Data
|
Physical State; Appearance:
COLOURLESS LIQUID
, WITH CHARACTERISTIC ODOUR.
Physical Dangers:
The vapour is heavier than air
and may travel along the ground; distant ignition possible.
Chemical Dangers:
Reacts
with
oxidants
and
strong reducing agents
and
strong bases
causing fire hazard.
Occupational Exposure Limits:
TLV: 10 ppm as TWA; (ACGIH 2008).
EU OEL: 10 ppm, 53 mg/m3 as TWA; 20 ppm, 107 mg/m3 as STEL. (EU 2000).
OSHA PEL: TWA 25 ppm (130 mg/m3)
NIOSH REL: TWA 25 ppm (130 mg/m3)
NIOSH IDLH: 100 ppm See: 541855
|
Routes of Exposure:
The substance can be absorbed into the body
by inhalation.
Inhalation Risk:
A harmful contamination of the air will be reached rather slowly on evaporation of this substance at 20°C.
Effects of Short-Term Exposure:
The substance
is irritating to
the eyes
,
the skin
and
the respiratory tract
.
The substance may cause effects on the
central nervous system
.
Exposure far above the OEL may result in unconsciousness.
Effects of Long-Term or Repeated Exposure:
The liquid defats the skin.
|
|
Physical
Properties
|
Boiling point: 157-162°C
Melting point: -56.7°C
Relative density (water = 1): 0.82
Solubility in water, g/100 ml at 20°C: 0.3
Vapour pressure, kPa at 25°C: 0.267
Relative vapour density (air = 1): 4.4
|
Relative density of the vapour/air-mixture at 20°C (air = 1): 1.0
Flash point:
43°C c.c.
,
57.2°C o.c.
|
|
Environmental
Data
|
|
|
N O T E S
|
Explosive limits are unknown in literature, although the substance is flammable and has a flash point <61°C.
The odour warning when the exposure limit value is exceeded is insufficient.
Transport Emergency Card: TEC (R)-30S2271 or 30GF1-III
Card has been partially updated in February 2009: see Occupational Exposure Limits, Ingestion First Aid,
|
|
|
ADDITIONAL INFORMATION
|
|
|
|
ICSC: 1391
|
5-METHYL-3-HEPTANONE
|
|
(C) IPCS, CEC, 1994
|
|
|
IMPORTANT LEGAL NOTICE:
Neither NIOSH, the CEC or the IPCS nor any person acting on behalf of NIOSH,
the CEC or the IPCS is responsible for the use which might be made of this
information. This card contains the collective views of the IPCS Peer Review Committee and may
not reflect in all cases all the detailed requirements included in national legislation
on the subject. The user should verify compliance of the cards with the relevant legislation
in the country of use.
The only modifications made to produce the U.S. version is inclusion of the OSHA PELs, NIOSH RELs and NIOSH IDLH values.
|
|
|